Opteron 6328 's Advantages
Higher base frequency (3.2GHz vs 2.8GHz)
Lower TDP (115W vs 180W)
AMD EPYC 7402P 's Advantages
Released 6 years and 9 months late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 2)
Larger L3 cache size (128MB vs 8MB)
More modern manufacturing process (7nm vs 32nm)